Ammark Corp., of Pompton Plains, N.J., has announced an expansion of its offering of the Water Manager POE backwash filters. In addition to models BW and BW-PRV POE backwashing sediment filters, models SF-MINI and BW-HC (high capacity) are now available. Model SF-MINI is a low cost, low maintenance filter that can be flushed clean without disassembly. It’s suitable for basic sediment removal requirements or as a pre-filter for other sediment filters or water treatment equipment.